04-02-2016 02:25 AM
26 12
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  1. Nikkiekoala's Avatar
    I got the security update from tmobile yesterday. I have the s7 edge. I am noticing a huge drop in battery performance! Until the update my battery lasted all day 7 a.m. Thru to 11 p.m. or longer. Since update it is now down to 34% at 3:30 p.m. What the heck?! Anyone else notice battery drain with the security update?
    03-19-2016 05:34 PM
  2. B. Diddy's Avatar
    Have you already tried a cache partition wipe? https://support.t-mobile.com/docs/DOC-24999
    03-19-2016 05:38 PM
  3. Nikkiekoala's Avatar
    I haven't. I'll give it a try.

    Posted via the Android Central App
    03-19-2016 05:52 PM
  4. DaveInFL's Avatar
    I got the security update from tmobile yesterday. I have the s7 edge. I am noticing a huge drop in battery performance! Until the update my battery lasted all day 7 a.m. Thru to 11 p.m. or longer. Since update it is now down to 34% at 3:30 p.m. What the heck?! Anyone else notice battery drain with the security update?
    If anything mine has gotten better. I am at 24 hours, with nearly 4 hours SOT and 23% battery left.
    03-19-2016 08:27 PM
  5. Nikkiekoala's Avatar
    I did the cache wipe. Time will tell now. BTW how will that help?

    Posted via the Android Central App
    03-19-2016 08:46 PM
  6. torbach1's Avatar
    I haven't noticed any difference whatsoever since the uodate, in this or in any other area.

    Posted via the Android Central App
    03-19-2016 09:18 PM
  7. Almeuit's Avatar
    Mine has been the same so far. This is so far after charging this afternoon. I have hotspot going right now (for about an hour).. And was on wifi a lot.
    Attached Thumbnails Tmobile security update battery drain?-1458445313819.jpg   Tmobile security update battery drain?-1458445322114.jpg  
    03-19-2016 10:42 PM
  8. B. Diddy's Avatar
    I did the cache wipe. Time will tell now. BTW how will that help?

    Posted via the Android Central App
    The system cache partition holds temporary system data. Sometimes, after a system update, the older temporary data in the cache partition can cause some conflicts or performance degradation, so wiping it can help. I don't know the intricate technical details--all I know is that sometimes it helps!
    03-20-2016 12:48 AM
  9. da3lynx's Avatar
    Battery life has been the same for me, I was off charger yesterday around 8am until 1am, and I still had 2 hours left before I hit 0.
    03-20-2016 07:15 AM
  10. Kilroy672's Avatar
    After my update I went to bed at 100% which was around 1:30am it so and woke up this morning around 8:30am at 85% I think. I'm guessing the drain was due to optimizing the apps after the update. Will find out during the day how much this drains or remains the same.

    Posted via the Android Central App
    03-20-2016 08:20 AM
  11. Nikkiekoala's Avatar
    I did the cache wipe and my battery is still draining fast! I unplugged it from the charger at 7:45 this morning it is now 12:00 in the afternoon and I have 58% left! I bought my phone on the 12th the battery has been amazing until Friday when the software update came thru. Help! What else can I try?

    Posted via the Android Central App
    Attached Thumbnails Tmobile security update battery drain?-861.jpg  
    03-20-2016 02:01 PM
  12. Nikkiekoala's Avatar
    I guess two photos can't go one one post..

    Posted via the Android Central App
    Attached Thumbnails Tmobile security update battery drain?-860.jpg  
    03-20-2016 02:02 PM
  13. bhatech's Avatar
    Not having any issues on my T-Mobile version as well, both before and after update its been same. If all else fails try reset, did you see if any particular app is using more time? Do you have always on display? If yes turn that off and see.
    03-20-2016 04:28 PM
  14. Nikkiekoala's Avatar
    I took it into tmobile they did all the checks. Since I'm within the 14 day return period and within the 12 day buyers remorse period they are exchanging the phone. The catch is there are no gold or any other color edges in our area! So a new phone is being sent BUT the edges are on back order. So it will take 2-3 weeks. :/

    Posted via the Android Central App
    03-20-2016 07:23 PM
  15. B. Diddy's Avatar
    Ok, let's take a closer look at your battery stats. Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

    1. The main Settings>Battery screen.
    2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
    3. The Screen category (to see total Screen On time).
    4. The Cell Standby category, if present (to see Time Without Signal).
    03-22-2016 05:52 PM
  16. Nikkiekoala's Avatar
    Here is the screenshots I have. The battery did a bit better today but nothing like before the update. My daughter has the same phone purchased at the same time as well. She is a heavy user. She currently had 65% unplugged from charger at 5 this morning her screen time is a bit less then mine.

    Posted via the Android Central App
    Attached Thumbnails Tmobile security update battery drain?-screenshot_20160322-204529.jpg  
    03-22-2016 11:21 PM
  17. Nikkiekoala's Avatar
    Second shot

    Posted via the Android Central App
    Attached Thumbnails Tmobile security update battery drain?-screenshot_20160322-204612.jpg  
    03-22-2016 11:22 PM
  18. Nikkiekoala's Avatar
    Third

    Posted via the Android Central App
    Attached Thumbnails Tmobile security update battery drain?-screenshot_20160322-204822.jpg  
    03-22-2016 11:22 PM
  19. B. Diddy's Avatar
    Given your total screen-on time so far on this charge, I'd say your battery life looks relatively normal, since you're on track for 6 hrs of total screen-on time. I wonder how accurate your daughter's battery stats are, or perhaps she partially charged up midway through, because if she truly is down to a battery level of 65% with let's say 4 hrs of screen on time, that means she's on track for more than 10 hours of screen on time, which is unheard of (unless she's rooted and running a custom ROM).

    It would also be helpful to see your cell signal strength. If the system menu doesn't show it (usually if you tap the battery graph to make it fullscreen), then you can install GSam Battery Monitor or something similar to see it. Poor cell signal can drain battery (and you can still have poor signal but 0% Time Without Signal).
    03-23-2016 01:36 PM
  20. Nikkiekoala's Avatar
    Tmobile sent me a replacement. I'm using it now. Something had to be wrong with the battery. I was having less battery time on my s7 edge then I did with my s6 edge. That's not normal. The new one I have now has been amazing! Exactly like the one that was replaced before the update. Not sure if the update caused the problem or what. But I am happy now. I wasn't hallucinating the s7 battery performance decline.

    Posted via the Android Central App
    03-24-2016 09:44 PM
  21. tonyr6's Avatar
    Have you already tried a cache partition wipe? https://support.t-mobile.com/docs/DOC-24999
    Don't bother. My Nexus 6 started to drain battery frequently after the security update. After 4 hours it goes down 6% with not even touching it. Before it only went down 1 or 2%. I must have ran about 10 cache wipes since. Does nothing.
    03-26-2016 09:23 AM
  22. B. Diddy's Avatar
    Don't bother. My Nexus 6 started to drain battery frequently after the security update. After 4 hours it goes down 6% with not even touching it. Before it only went down 1 or 2%. I must have ran about 10 cache wipes since. Does nothing.
    That's helpful to know, thanks. Still, different people may have somewhat different root causes, and since a cache partition wipe doesn't hurt, it's probably still worth trying at least once.
    03-27-2016 02:45 PM
  23. Gator352's Avatar
    I say it's a rogue app constantly running. Might be a system app or one downloaded.
    03-27-2016 04:02 PM
  24. p213crew's Avatar
    I am also having same battery issue. Before update my battery would last all day. I would get home and I would be at 75%.

    I only text and do some occasional email. No facebook. No Instagram, No Snapchat. I uninstalled Facebook for good measure. Disabled all apps I am not using. Installed a dark theme. Went into Developer mode and set setting to only have 3 apps in background running ( I think that's what it is called). BAttery was awesome until update. I double checked my settings after the update and they are still set but battery is bad now.

    Doing the Cache PArtition wipe now. Will see if that helps.


    I am on AT&T. My sister who is on T-Mobile also noticed battery drain faster after update.

    P213crew
    03-30-2016 03:14 PM
  25. Nikkiekoala's Avatar
    Because the update took a toll on my battery tmobile exchanged my phone and now I am a very happy camper BUT now I am getting the message and nag screen to do the update. NO Way am I going to do that so is there a way to stop the nag screen and to get it out of my notifications?

    Posted via the Android Central App
    04-01-2016 10:39 PM
26 12

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